Bearing race and bushing remover



March 22, 1927. 1,621,734

C. M. MCCORD BEARING RACE AND BUSHING REMOVER Filed N'ov. v, 1925 Patented Mar. 22, i927.

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BEARLNG RAGE AND RUSHING REMQIVER;

Application filed., November `,.liiushi-ng, and a device` tor moving sai-d elements radially in opposite directions into engagement with thelbearing race or busl ing, and actuating the same 1n` direction tolforcethe bearing race` or bushing fromy Wit-hinthe part in. which it `is mounted.

Another `object of the invention is' to provide` a devioeofthe characterand viter-the purpose mentioned, comprising a pair ot parte arranged to be extended ythrough the trace or bushing and moved radially `outwardly intel. engagement therewith,` and means for moving said parts radial-ly outwardly intoy engagementwith. the race or bushing and. then longitudinally withdraw thel race orlbushing trein the support in which itis mounted.` g 1 Y Other object-s of the invention will appear tronrthe following description taken in connection with the accompanying drawing, in which- Fig. 1 shows the device extending` into the bearing race or bushing support,

Fig. 2 is a sectional view on the line 2 2 oit' Fig. 1,

Fig. 3 is an end elevation of the device in the relationship shown in Fig. 1,

Fig. l is a side elevation ot the device per se, and

Fig. 5 is an inner end elevation ot the device. A The invention is shown applied for one et the uses for which it is intendec, 'which is for the removal of the outer bea-ring race from a type ot automobile hubs, although it will be understood from the following description that the use of the device is not restricted to this purpose. As shown, the hub casting comprises a tubular part 1 in which an anti-friction bearing race 2 is rigidly secured against an internal shoulder In this type ot' hub the shoulder is provided with a pair ot diametrically opposite notches 4 for the reception ot the end oi' a tool or implement for driving the race 2 from the part' 1 otA the hub. Due to the length. et the heb the operation et ing the bearing race 2 therefrom kby ruse ot existing; devices provided. Ifor.. that purpose L is tedious` `and. diicult.` My inventionL faglr tates and e-Xpedites theremoval, .ottheibealfing race from the hub.

As shown, a pair of arms A5 aretrigi'dly connected at oneend by spacedflinlrs 6,permittingspreading vand converging of Atheopposite ends ot saidarms,theopposite [end ot' `each ot which is notchedgto..providel an outwardly entending hoolt f7.v

A boltS has anabutment 9v:detachably` and rotatively secured to. its innerfendbya serew 10, so that the boltmay ybeturned independently of the abutment, andfvicevensa. The outerend ot the boltis providedy with ahead or handle 11 wherebythe boltfmay. be manuallyor mechanical-ly rotated, ,The

abutment 9 is .providedwith a pair'lof d iameti-really opposite notchesv 12 thnough which the arms, 5 extend whenythe deviceis in use, and which ,permitsutiicientinward,V

radial. movement oi the tree endsfof the arms .5 for the hooks Y topass through' the race 2 and to engagethe inner-endet :said race by seating in the notches 4 while 4the abutment 9 bears against the shoulder@ ot the hub.. Y

A cone nut 18 is screwed on the bolt 8- and when adjacent to or against the abutment 9 permits the described inward adjustment ot' the arms 5 so that the hooks 7 can pass through the race 2. The arms 5 are provided with cam surfaces 14 tor engagement by the cone nut so that when the bolt 8 is rotated in a direction to screw the nut outwardly thereon the nut will spread the arms 5, causing the hooks 7 to engage the inner' end of the race 2. As inward movement of the bolt 8 is prevented bv engagement of the abutment 9 against the shoulder 3, andas further spreading or the arms 5 is prevented by their engagement against the race 2, continued rotation of the holt 8 will force the arms 5 longitudinally toward the end 11 of the bolt, drawing the race 2 from the hub. This is because when the parts are positioned as sho-wn in 2, the cam surfaces 14 serve as abutments or shoulders against which the cone nut 13 pushes, resulting in the arms 5 being` pushed outwardly and drawing with them the race 2. After the race hasV been withdrawn Jfrom the hub the nut 13 may be moved in aV direction to permit inward c0nverging movements et the arms 5 and their diseonnof6 f the recel This devicefhas been found highly eilicient and practicable in use and greatly facilitates the Withdrawal of the bearing races from the hubs, and may be applied to various similar uses. The construction and arrangement oit .the parte may be varied Within equivalent limits Without departure from the nature and principle of the invention.

I claim:

l. A device for removing a bearing ring element from a support, comprising an abutment arranged to bear against the support, a rotative threaded bolt bearing against said abutment, a pair ot arms arranged to engage the ring element to be removed from said Y support, and a tapered body screwed on the bolt and operative thereby to spread said arms apart into engagement With said removable element and then to move said arms and thereby said ring element longitndinallyT Y from said Support.

2. A device for removing a bearing ring l element from a support, comprising a bolt,

of pivotally connected arms embracing said body between them and arranged to be operated by said body into engagement with the ring element and to be moved by said body longitudinally to withdraw the ring element from the support, and an abutment connected to the end ot the bolt arranged to bear against said support and engaging said arms.

t. A device for removing a. bearing ring element from a support, comprising a bolt, a pair of arms arranged to engage With the ring element, a tapered body screwed on the bolt and operated thereby to spread said arms into engagement With the ring element and to move said arms and thereby the ring element longitudinally from the support, an abutment for the end of the bolt arranged to bear against said support, and means pivotally securing said abutment in connection with the bolt.

5. A device of the character described comprising a threaded bolt7 a pair of arms arranged to move radially toward and away from the bolt, parts in connection with said yarms arranged to engage a bearing race or bushing, means operated bv the bolt for moving said arms radially outwardly into engagement with the bearing race or bushing, and then longitudinally to Withdraw the bearing race or bushing from a support, and an element Jor holding the bolt from longitudinal movement between said arms during withdrawal of the bearing race or bushing.

CLAUDE M. Meooan 

